Here is a list of historically Black fraternities:
1. Alpha Phi Alpha (ΑΦΑ)
2. Alpha Kappa Alpha (ΑΚΑ)
3. Kappa Alpha Psi (ΚΑΨ)
4. Delta Sigma Theta (ΔΣΘ)
5. Omega Psi Phi (ΩΨΦ)
6. Phi Beta Sigma (ΦΒΣ)
7. Zeta Phi Beta (ΖΦΒ)
8. Sigma Gamma Rho (ΣΓΡ)
9. Iota Phi Theta (ΙΦΘ)
10. Groove Phi Groove (GΦG)
11. Swing Phi Swing (ΣΦΣ)
12. Tau Beta Sigma (ΤΒΣ)
13. Phi Rho Eta (ΦΡΗ)
14. Kappa Kappa Psi (ΚΚΨ)
15. Beta Chi Theta (ΒΧΘ)
16. Eta Phi Beta (ΗΦΒ)
17. Theta Phi Sigma (ΘΦΣ)
18. Chi Eta Phi (ΧΗΦ)
19. Psi Eta Omega (ΨΗΩ)
20. Alpha Nu Omega (ΑΝΩ)
These organizations have played a significant role in the lives of Black college students and professionals, providing brotherhood, sisterhood, scholarship, service, and social activism. They have also contributed to the development of leaders in various fields, including politics, business, education, and the arts.
Note: This list only includes organizations that are currently active and recognized by the National Pan-Hellenic Council (NPHC), which is the governing body for historically Black Greek letter organizations.